Bilbiliini Gnezdilov, 2017

Gnezdilov, V. M., 2017, Notes on higher classification of the family Nogodinidae (Hemiptera: Auchenorrhyncha: Fulgoroidea), with description of new tribe and new species, Far Eastern Entomologist 347, pp. 1-21 : 7-8

Tribe Bilbiliini Gnezdilov , trib. n.

Type genus: Bilbilis Stål, 1861 .

DESCRIPTION. Fore wings beetle-shaped, with narrow precostal area, costal vein running to fuse Sc + R distally ( Figs 23 , 27 , 36 , 39, 42 ). Hind wings rudimentary. Gonoplacs convex, hemisphaerical, completely covering anterior and posterior laminae of gonapophyses VIII and IX, without denticles or marginal teeth

( Figs 10 , 48 ). First metatarsomere with 2 latero-apical and straight row of intermediate spines, ventral surface with hair-shaped setae. Third segment of rostrum slightly shorter than second one, narrowing apically. Hind tibia with 2

lateral spines distally.

REMARKS. The species of the genus Bilbilis Stål have characteristic massive hemisphaerical gonoplacs, without denticles or teeth, completely covering anterior and posterior connective laminae of gonapophyses VIII and IX ( Figs 10 , 48 ). Such shape and structure of gonoplacs allowed to Fennah (1984) place this taxon in the subtribe Gaetuliina Fennah (currently Tropiduchidae , Elicini Melichar), but male genitalia structure and particularly the style with long and narrow capitulum without lateral tooth ( Figs 18 , 28 ) show the correct position of the genus Bilbilis within Nogodinidae rather than Tropiduchidae . Coleopterous fore wings of Bilbilis with narrow precostal area makes it similar to Epacriini Fennah, 1978 and Lipocalliini Fennah,

1984, however, differences in ovipositor structure including in addition to gonoplacs

(flat and nearly triangular in Epacriini and Lipocalliini ) (Fennah, 1978, figs 9, 10;

Gnezdilov, 2017b, fig. 15) also the structure of anterior connective lamina of gonapophyse VIII and posterior connective laminae of gonapophyses IX which are narrow in the members of Epacriini and Lipocalliini ( Figs 5–7 ) and wide in Bilbilis

( Figs 13, 14 ) place this genus separately within Nogodinidae and accordingly I propose to treat it as a distinct tribe – Bilbiliini trib. n. As the members of the genus Bilbilis are characterized by convex hemisphaerical (not flat) gonoplacs (Figs

10, 48) generally similar (by its convex and not flat shape, but different in details)

to those of Pisachini Fennah, 1978 , Varciini Fennah, 1978 , and Mithymnini Fennah,

1967 I suggest to keep Bilbiliini trib. n. within Nogodininae until the phylogeny of the family is not developed.

COMPOSITION. Monotypical Australian tribe.

Figures

Figs 20–23. Bilbilis modestus (Stål), Blue Mts. 20 – head (frontal view); 21 – head and

Figs 24–27. Bilbilis elongatus Gnezdilov, sp. n., holotype. 24 – head and pronotum

Figs 35–38. Nogodinidae. 35–37 – Bilbilis modestus (Stål), holotype: 35 – dorsal view;

Figs 39–44. Nogodinidae. 39, 40 – Bilbilis dorsalis (Walker), holotype: 39 – lateral view;

Figs 10–15. Bilbilis modestus (Stål), female genitalia, French’s Forest. 10 – anal tube and

Figs 45–48. Nogodinidae. 45–47 – Bilbilis elongatus Gnezdilov, sp. n., holotype: 45 –

Figs 16–19. Bilbilis modestus (Stål), male genitalia, Blue Mts. 16 – genital block (lateral

Figs 28–31. Bilbilis elongatus Gnezdilov, sp. n., holotype, male genitalia. 28 – genital

Figs 5–9. Nogodinidae, female genitalia, anterior connective lamina of gonapophyse VIII